<template>
    <div>
        <template v-for="(item, index) in options">
            <template v-if="values.includes(item.value)">
        <span
                v-if="(item.elTagType == 'default' || item.elTagType == '') && (item.elTagClass == '' || item.elTagClass == null)"
                :key="item.value"
                :index="index"
                :class="item.elTagClass"
        >{{ item.label + " " }}</span>
                <el-tag
                        v-else
                        :disable-transitions="true"
                        :key="item.value + ''"
                        :index="index"
                        :type="item.elTagType === 'primary' ? '' : item.elTagType"
                        :class="item.elTagClass"
                >{{ item.label + " " }}
                </el-tag>
            </template>
        </template>
        <template v-if="unmatch && showValue">
            {{ unmatchArray | handleArray }}
        </template>
    </div>
</template>

<script setup>
    // 记录未匹配的项
    const unmatchArray = ref([]);

    const props = defineProps({
        // 数据
        options: {
            type: Array,
            default: null,
        },
        // 当前的值
        value: [Number, String, Array],
        // 当未找到匹配的数据时，显示value
        showValue: {
            type: Boolean,
            default: true,
        },
        separator: {
            type: String,
            default: ",",
        }
    });

    const values = computed(() => {
        if (props.value === null || typeof props.value === 'undefined' || props.value === '') return [];
        return Array.isArray(props.value) ? props.value.map(item => '' + item) : String(props.value).split(props.separator);
    });

    const unmatch = computed(() => {
        unmatchArray.value = [];
        // 没有value不显示
        if (props.value === null || typeof props.value === 'undefined' || props.value === '' || props.options.length === 0) return false
        // 传入值为数组
        let unmatch = false // 添加一个标志来判断是否有未匹配项
        values.value.forEach(item => {
            if (!props.options.some(v => v.value === item)) {
                unmatchArray.value.push(item)
                unmatch = true // 如果有未匹配项，将标志设置为true
            }
        })
        return unmatch // 返回标志的值
    });

    function handleArray(array) {
        if (array.length === 0) return "";
        return array.reduce((pre, cur) => {
            return pre + " " + cur;
        });
    }
</script>

<style scoped>
    .el-tag + .el-tag {
        margin-left: 10px;
    }
</style>
